Temperature regulator



E 4 2 9 1 I l H P A TEMPERATURE REGULATOR v I I IIIIIIIII I! fllridv m 71 I 1 Filed w 27. 1921 Patented Apr. 1, 1924.

UNITED STATES EDGAR BEAUMONT JARVIS, or BELLEVILLE, oNrAnro, cannon.

TEMPERATURE REGULATOR.

Application filed December 27, 1921. Serial No. 525,009.

To all whom it may concern:

Be it known that I, EDGAR BEAUMONT JARVIS, a subjectof the King of GreatBritaim, and resident of the city of Belleville, county of Hastings,Province of Ontario, in the Dominion of Canada, have invented certainnew and useful Improvements in Temperature Regulators, described in thefollowing specification and illustrated in the accompanying drawings,that form part of the same.

The principal objects of the invention are, to obviate the diiiicultiesmet with in this class of device through clogging of the valves withdirt and sediment in the water, to enable the ready access to the valvesfor re-seating, to ensure positive operation of the valves at all times,and todevise a con struction of extremely neat form.

The principal features of the invention consist in the novelconstruction of the cas ing and the arrangement of the valves, wherebyan exceptionally free outflow passage to the main valve seat is providedand a simple and natural return flow passage is arranged, and wherebythe main valve is supported in its enclosing casing to ensure its properseating and the minimum of frictional contact.

In the drawings, Figure 1 is a longitudinal vertical section of myimproved device taken in mid-section through the inlet and outletpassages.

Figure 2 is a horizontal plan section on the line 2-2 of Figure 1.

Figure 3 is a horizontal plan section on the line 33 of Figure 1.

Figure 4': is a horizontal plan section on the line 1-4 of Figure 1.

Temperature regulators of various kinds have been devised for use in hotwater heating systems and their advantages are well known but it hasbeen found that after such devices have been in use for more than aseason or where they are installed in new systems without proper carebeing taken to cleanse the system the valves become inoperative throughthe clogging of sediment or other dirt carried by the water in a deadsystem.

The present construction has been particularly devised to overcome thesediiiiculties, the body 1 is a unitary casting of cy= lindrical formhaving a centrally arranged inlet 2 at the bottom and the lateral outlet3 adjacent to the top.

l Vithin the cylindrical body is arranged a 'zig-zag partition the lowerportion 4 thereof being horizontally disposed and extendmg past thevertical centre and turned upwardly to meet the horizontal partition 5which is spaced above the portion 4.

- A vertical portion 6 extends upwardly from the portion 5 and connectswith the horizontal portion 7.

An annular boss 8 extends above the upper horizontal wall 7 and formsthe main valve seat and a smaller seat 9 is formed 7 in the horizontalpartition 5 in alignment with the upper valve seat.

A plurality of vertical ribs 10 extend between the upper andintermediate horizontal portions 7 and 5 of the partition and these formvertical guides for a valve 11 which able cap 16 which is shown providedwith a stufiing box 17.

The main valve 18 is a heavy metal cylindrical body provided with aseating portion 19 of a suitable non-corrosive metal which is adapted torest upon the valve seat 8. The cylindrical body of the valve 18 isprovided with a plurality of projecting members 20'having rounded headswhich slidably engage the inner wall of the easing 15. The valve thusoperates with the least possible frictional contact with the wall of thecasing and is supported individually centrally of the casing.

A rod 21 is secured in the valve 18 which extends upwardly through thestuffing box 17 being provided with a suitable thumb piece 22 by meansof which the valve may be rotated on its seat to clean the seat of anygrit or to grind it into place.

These devices are subject to deposit of sediment being carried up fromthe furnace and the construction herein described provides a pocketbetween the partition walls 4, 5 and '6 where this sediment will settlewithout interfering with the action of the valves and as such pocket isin direct com munication with both valve seats it will be very effectivein keeping them clear.

A clean-out screw 23 is secured in the side of the body 1 to enable theaccumulated sediment to be withdrawn.

It is desirable to provide means for ascertaining the operation of theheating system and a threaded boss 24: is arranged on the side of thebody 1 below the main valve and in this boss is secured a suitablepressure gauge 25.

The operation of the device is very simple. The flow of the expansion ofthe water in the heating system is checked by the weight of the mainvalve and the increase in temperature causes the valve to eventuallylift. When the temperature reduces the excess which has flowed into theexpansion tank returns through the small return valve. The success ofthe device depends upon the freedom of movement of the valves and theease of access thereto.

What I claim as my invention is 1. A temperature regulator, comprising,a cylindrical casing having an inlet at the bottom and an outletthereabove, a zig-zag partition forming an integral part of said casingand separating the inlet from the outlet, a pair of valve seats arrangedin opposing portions of said partition and in alignment and both openingupwardly, a main valve closing the upper valve seat, and a return valveclosing the lower seat.

2. A temperature regulator, comprising, a cylindrical casing having aninlet at the bottom and an outlet'thereabove, a zig-zag partition insaid casing separating the inlet from the outlet, a main valve seat inthe upper portion of said partition, a valve seat in the partition belowthe main valve seat and in axial alignment therewith, parallel guidesextending between said upper and lower portions or" the partition andspaced around the lower valve seat, a valve resting on the main valveseat, and a valve resting on th lower valve seat and slidably engagingsaid guides.

8. A temperature regulator, comprising, a cylindrical casing having aninlet at the bottom and an outlet thereabove, a zig-zag partition insaid casing separating the inlet from the outlet, a main valve seat inthe upper portion of said partition, a valve seat in the partition belowthe main valve seat and in axial alignment therewith, parallel guidesextending between said upper and lower portions of the partition andspaced around the lower valve seat, a valve resting on the main valveseat, and a cylindrical valve closing the lower valve seat and having aperipheral flange slidably engaging said guides.

i. A temperature regulator, comprising, a cylindrical casing having aninlet at the bottom and an outlet thereabove, a partition within saidcasing extending from one side of the inlet and across same, returninghorizontally and extending upwardly at one side of the axial centre andfinally crossing the axis horizontally to the side wall and separatingthe inlet from the outlet, a valve seat in th upper horizontal portionof said partition, a valve seat in the horizontal portion beneath saidupper portion, guides extending between said horizontal portions of thepartition, a valve closing the upper seat, and a valve closing the lowerseat and slidably held in said guides. V EDGAR BEAUMONT JARVIS.

